Indirect Potentiometric Titration of Fe(III) with Ce(IV) by Gran's Method

Indirect Potentiometric Titration of Fe(III) with Ce(IV) by Gran's Method

The indirect titration of Fe(III) ion with oxidizing agent is a good example of the application of Gran's method to a redox reaction because the Gran curve doesn't present linearity deviations as other redox systems do. It seems as if previous stages of reduction and rinsing of the reducin...

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Bibliographic Details
Published in:Journal of chemical education Vol. 78; no. 1; p. 91
Main Authors: Barreto, Maria da Conceição Silva, Medeiros, Luciana de Lucena, Furtado, Paulo César de Holanda
Format: Journal Article
Language:English
Published: Easton Division of Chemical Education 01-01-2001
American Chemical Society
Subjects:
Chemistry
Experiments
Iron
Oxidation
Oxidizing agents
Science education
Titration
Hands-On Learning / Manipulatives
Electrochemistry
Analytical Chemistry
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Summary:The indirect titration of Fe(III) ion with oxidizing agent is a good example of the application of Gran's method to a redox reaction because the Gran curve doesn't present linearity deviations as other redox systems do. It seems as if previous stages of reduction and rinsing of the reducing column leave the solution to be titrated with a high ionic strength, which does not vary considerably during the titration.
ISSN:0021-9584
1938-1328
DOI:10.1021/ed078p91